[MAINT] Do not use copyright year ranges #6321

Job	Run time
build_windows (3.12)	8m 29s
build_windows (3.14)	8m 57s
build_windows (3.11)	8m 53s
build_linux (3.11)	5m 34s
build_linux (3.13)	5m 25s
build_windows (3.10)	8m 53s
build_linux (3.14)	5m 32s
build_linux (3.12)	6m 3s
build_windows (3.13)	8m 45s
build_linux (3.10)	5m 25s
test_examples_linux (3.14, false, ubuntu-latest)	5m 17s
test_linux (3.13, false, ubuntu-latest)	2m 25s
test_linux (3.10, false, ubuntu-latest)	2m 48s
test_linux (3.14, false, ubuntu-latest)	2m 10s
test_linux (3.12, false, ubuntu-latest)	2m 28s
test_linux (3.11, false, ubuntu-latest)	2m 36s
upload_linux	0s
test_windows (3.10, false, windows-latest)	2m 43s
test_windows (3.11, false, windows-latest)	4m 10s
test_windows (3.13, false, windows-latest)	3m 35s
test_windows (3.12, false, windows-latest)	4m 22s
test_windows (3.14, false, windows-latest)	3m 16s
upload_windows	-1s
Clean up anaconda packages	0s
	1h 47m 45s

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